function BoxImg(urlImg){
	Box.apply(this,arguments);
	this.htmlX.addClass("BoxImg").css({"background-image":"url('"+urlImg+"')","background-repeat":"no-repeat","background-position":"left center"});
	this.htmlX[0]["dta"] = this;
}
BoxImg.prototype.setImg=function(nimg){
    this.htmlX.css("background-image","url('"+nimg+"')");	
};
